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Decadal Survey of Civil Aeronautics Foundation for the Future (2006) / Chapter Skim
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4 Common Themes and Key Barriers
Pages 57-64

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From page 57...
... The steering committee also numerical solutions must generally be used. identified threads of commonality among the R&T Thrusts and the R&T Challenges from different R&T Areas and called them Common Themes: Background This Theme is particularly applicable to three R&T Areas · Physics-based analysis tools examined in this study: aerodynamics and aeroacoustics, pro · Multidisciplinary design tools pulsion and power, and materials and structures.
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From page 58...
... Unfortunately, limits on the use of simulations are often not Multidisciplinary Design Tools well understood. Description Suggested approach Discipline-specific design tools, including optimization NASA and its academic and industrial partners can make and inverse design, have improved the performance of airvery significant contributions in developing and validating foils, wings, structures, control systems, and propulsion sysphysics-based analysis tools.
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From page 59...
... considered in the early stages of the design process, the multidisciplinary design process is still underdeveloped. One of the major limitations of past efforts to create MDO tools Benefits of synergy has been a low level of fidelity, driven by a lack of physics Multidisciplinary design processes develop synergistic based models that are efficient and appropriate for system benefits by integrating people, analytical tools, experimenlevel design.
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From page 60...
... configurations benefit from Suggested approach a change in paradigm in the way that guidance, control, and Creativity and good ideas have been at the center of revo- real-time weather information is shared and used by pilots, lutionary advances in aeronautics. One of NASA's roles is controllers, and air traffic managers.
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From page 61...
... In the past 2 years, prototypes from DARPA's the operation of larger, more complex air transportation sysMorphing Aircraft Structures program have been demon- tems. For example, sensors incorporated into an aircraft to strated at transonic speeds in the Transonic Dynamics Tun- detect icing may well provide information useful to the ATM nel at NASA Langley.
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From page 62...
... Additionally, current syslowing systems issues become more critical and more diffi- tem models are not easily reconfigured or adaptable to realcult to examine: time analysis. · When system performance is itself a complex, non Suggested approaches deterministic phenomenon emerging from the interac tion of independent system components with stochastic Key to analyzing a complex interactive system such as the behaviors, it may not be feasible to develop an analyti- air transportation system is developing a suite of interacting cal model of the entire system, making it difficult to models with comprehensive simulation and analysis capabili describe, explain, and predict the system performance ties.
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From page 63...
... One way to facilifeasible for large-scale systems (including complex, software tate change in the midst of such complexity is to establish intensive systems and air traffic operating concepts) and strong, focused leadership that establishes a public/private human-in-the-loop behaviors, which are not the same in dif process for change that defines air transportation as a naferent operating contexts; in these cases, certification will be tional priority, produces a widely endorsed long-term vision substantially aided by the use of design tools and design pro of the air transportation system, and coordinates action by cesses developed to mitigate concerns about design validity, interested organizations.
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From page 64...
... . The establishment of the Next Gen- REFERENCES eration Air Transportation System (NGATS)
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Key Terms

  • design tools
  • analysis tools
  • air transportation
  • multidisciplinary design
  • design process

  • air traffic
  • computational simulations
  • civil aeronautics
  • common themes
  • design space

  • underlying physics
  • empirical data
  • adjustable parameters
  • chemical phenomena
  • management techniques

  • mdo tools
  • change management
  • suggested approach
  • successful design
  • efficient design

  • product design
  • design margins
  • distributed design
  • design strategies
  • design processes

  • design parameters
  • inverse design
  • aeronautical design
  • design codes
  • design methods


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